Web-operating mechanism.



W. H. RICHARDSON. WEB OPERATING MECHANISM.

APPLICATION FILED OUT-5,1910.

Patented Aug. 22, 1911.

gewtqz 6:1, a I K WILLIAM H. RICHARDSON, OF JERSEY CITY, NEW JERSEY.

' WEB-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Aug. 22, 1911.

Application filed October 5, 1910. Serial No. 585,358.

To all whom it may concern:

Be it known that I, WILLIAM H. RICHARD- soN, a citizcnof the UnitedStates, residing in the city of Jersey City, county of Hudson, and Stateof New Jersey, have invented certain new and useful Improvements in\Veb- Operating Mechanism, of which the follow ing is a full, clear, andexact specification.

This invention relates to web operating mechanism and has for its objectto provide simple and eflicient mechanism for intermittent y. adjustablyaccelerating the forward speed of a web. a

The improvement is peculiarly adapted for use on a printing press inwhich the cen ters ofthe impressions are to be spaced far-- ther apartthan the circumference of the printing cylinder. Vhen such employment isin a cylinder press for printing a web from which sheet lengths are tobe cut the "amount of acceleration may be varied for enabling a singleroller or printing cylinder to do duty in connection with sheets of manyl lengths, for instance a printing roller of a V 'ven diameter may 'beemployed for print lng upon a Web for making sheets of a length e ual tothe circumference of the rolleror 0% any much greater length which isdesired, I

In the drawings accompanying and forming a part of this s ecificationFigure 1 illustrates diagrammatically the end view of a web presentimprovement. detail of one of the guide rollers and the printing pressequipped with my accelerating 'mechanism, Fi g. 3 a cross 'section ofthe/device illustrated in F g.1,

showing the'adjustability of the accelera tors, Fig, 4 is an enlargeddetail view of the feed cylinder and cutting devices.

' I A web of material 5, which web may, if

desired, be cloth, will be fed into the machine from, some. suitablesource and will passover suitable guide-rollers and pass betweentheprinting-eylinder 6 and the platen cylinder '7, and through and overother guide-rollers to the feeding and cutting mechanism 8. The feedingand, cutting mechanism engages and draws forward the web and cuts thesame into sheets of predetermined length, and it may be adjusted .asoccasion demands for determining the len th of the sheets. The feedingand cutting mechanism herein illustrated comprises. a

cylinder composed of, two halves 20, 20,

Fig. 2 is an enlarged and adjusting-screws 22, are provided for thepurpose of effecting the relative adjustment of thecylinder halves. Thecutter proper herein illustrated is, a saw caused to travel within thecylinder by any suitable means. The saw is located partly within thecylinder and protrudes through the openings 27, between the cylinderhalves. The travel of the cutter is so timed that it will cut the fabricbehind one of: the rows of holding-- pins on the cylinder and in frontof the other row. The Web Wlll always be engaged by one of the rows ofpins and at times by both rows.

The printin cylinderfi isshown provided with a raised printing-surface9, and a plane-surface 10, so that its circumference is divided betweena printingrsurface and a plane-surface. The cylindrical platen"? isdisposed at a sufficient distance from the printing cylinder 6, that theprinting surface 9 will properly act upon the web 5 passing between thecylinders at the time the printing-surface is opposed to the platen, andthat at the time the planeportion is presented in opposition to theplaten,"ithjeres;

will be sufiicient s ace between the .c li'n'dcrs to permit the Wetomove at a iiferent .(sipeed than the surface speed of the cyliners.

If the call of the feeding-device 8 is "such and the shaft 12. When,however, the callof=the feeding-device is in excess of the normaldelivery of theprinting 'cylinder 6, the

web must be accelerated between implies sions' an amount suflicientto'sat'isfy the call of the feeding-device. Asthe webis passed acrossthe pr nting-cylinder, it will be" er mitted to move at the same surfacespec as the printin :surface-portion 9, while this" printing-'surace-portion. is in its rinting position. After the printing-ear aceportion has all run over the web, the web will then be given anaccelerated movement anddrawn, across the plane-surface 10 of therinting-cyl mder, in the present illustration hy means of series ofweb-engaging devices carried bythe shaft 12.

The shaft 12 is driven in' proper sequential timing with thefeeding-device 8 and is shown having a pair of adjustable brackets 13,which are shown provlded w th radially-disposed ways 14, for receivingthe ends 15,.of bars 16. bars which will engage the web to accelerateits feed. The ends 15 are adjustable in the ways 14. They will be heldin their p0s1-- tions of adjustment by some suitable means as forinstance, tap-bolts 17. By means of the radial adustment of the members16 toward or away from their axis of revolution-that is, the axisof theshaft l2-the amount of acceleration given the web may be adjusted sothat the intermittent accelerations will be equal to the differencebetween the circumference of the printing cylinder 6 and the distancebetween the centers-of the printed matter on "the web.

The printing-cylinder. 6, the shaft 12, and thecutt-ingand-feeding-device 8, are shown geared'together by a suitabletrain of gearwhich will cause these parts to move in unison;

Although I have shown but oneform of d mechanism for carrying out my1mprovc- Iment, yetchanges may be made within the Scope of 1 myinvention without departing therefrom. I

' .Having thus described my invention what I claim and desire to secureby'Letters Pat- -entis:

1; The combination with a cylinder having a printing surface on aportion only of its perimeter, 3 of severing mechanism, and meansinterposed between the printing cylinder and severing mechanismincluding 'means fo'r guiding a' Web away from such cyllndel iindadjustable' means associated with a member of the-said guiding means ingthefeed if the Web while for accelerating, the web movement betweenimpressions.

2. The combination with a roller having its erimeter divided into aprinting surface an a plane surface, of severing mechanism means forpassing a web across said roller and rotatable mea-ns interposed betweenthe printing surface and severing mechanism and adapted to engage theweb for acceleratpassing over theplane .poiition.

' 3-,; The combinatio with a cylinder hav-.

The bars are the mem cutting devices and the -w1tnes ses.

' WILLIAM H. RICHARDSON.

ing its perimeter divided into a printing surface and a plane surface,of meansl' 'for passing a web across said cylinder and comprising asmall guide roller and web-engaging members carried by said roller atone side thereof.

4:. The combination with a cylinder having its perimeter divided into aprintingsurface and a plane surface, of means for passing a web acrosssaid cylinder and comprising a small ing members carried by said rollerand means for radially adjusting said members.

5, The combination with a printing cylinder and a platen cylinder, theprinting cyl-' inder being provided with a raised printing surface and,a plane surface, said plane surface being located in position to make aclearance with the platen cylinder, of a circumferentially-adjustableweb feeding device and a cutting device, a guide roller between the webfeeding device and the printing cylinder and provided with a portion ofsmall radius and and gearing between said web feeding and printingcylinder and the said guide roller for causing these parts to move inunison and for causing the portion of grpate'r radius of the guide rollto'engage the web while this is in engagement with the plane surface ofthe printing 6. The combination with a der provided with a cylinder.

printing surface upon a portion of its perimeter and a plane surfaceupon another portion thereof,;iof'an auxiliary cylinder,circumferentially adjustable, a guide roller for the web'cumprising aportion of small radius and a plurality of members carried thereby andmaking a surfaceof greater radius, means for adjusting the radialdistance of said members from said roller, printing cylinder,

guide roller together, to move in unison, i1:-

respective of the adjustment of'said ad} justable members and timed forbringing a portion of larger radius,-

means connecting said auxiliary: cyl nder and guide roller andweb-engagpr y inthe same into engagement with,the "web? while this ispassing of the cylinder.

In witness whereof I have hereunto set my hand in the itnesses "over theplane urfa e;

.-1( presence of two subscribing CHAs. LYON RUSSELL, I

WM; O. DUNN.

